1. To find the surface area of a composite 3D figure, you will need to break it down into simpler shapes and calculate the surface area of each shape separately.
2. You can then add up the surface areas of all the shapes to get the total surface area of the composite figure.
3. For example, if you have a composite figure made up of a rectangular prism and a cylinder, you would calculate the surface area of the rectangular prism (2(lw + lh + wh)) and the surface area of the cylinder (2πrh + πr^2), and then add them together to get the total surface area.
4. Make sure to pay attention to any shared faces between the different shapes in the composite figure, as these faces should only be included once in the total surface area calculation.
5. Calculating the surface area of composite 3D figures can be more complex than finding the surface area of simple shapes, so be sure to take your time and break the figure down step by step to ensure accuracy in your calculations.
Answer answers to unit six surface area lesson nine surface area of composite three d figures
1 answer